/**
 * Copyright (C) 2009 - 2013 SC 4ViewSoft SRL
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.achartengine.chartdemo.demo.chart;

import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Paint.Align;
import org.achartengine.ChartFactory;
import org.achartengine.chart.BarChart.Type;
import org.achartengine.model.RangeCategorySeries;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;

/**
 * Temperature demo range chart.
 */
public class TemperatureChart extends AbstractDemoChart {

    /**
     * Returns the chart name.
     *
     * @return the chart name
     */
    public String getName() {
        return "Temperature range chart";
    }

    /**
     * Returns the chart description.
     *
     * @return the chart description
     */
    public String getDesc() {
        return "The monthly temperature (vertical range chart)";
    }

    /**
     * Executes the chart demo.
     *
     * @param context the context
     * @return the built intent
     */
    public Intent execute(Context context) {
        double[] minValues = new double[]{-24, -19, -10, -1, 7, 12, 15, 14, 9, 1, -11, -16};
        double[] maxValues = new double[]{7, 12, 24, 28, 33, 35, 37, 36, 28, 19, 11, 4};

        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
        RangeCategorySeries series = new RangeCategorySeries("Temperature");
        int length = minValues.length;
        for (int k = 0; k < length; k++) {
            series.add(minValues[k], maxValues[k]);
        }
        dataset.addSeries(series.toXYSeries());
        int[] colors = new int[]{Color.CYAN};
        XYMultipleSeriesRenderer renderer = buildBarRenderer(colors);
        setChartSettings(
                renderer, "Monthly temperature range", "Month", "Celsius degrees", 0.5, 12.5,
                -30, 45, Color.GRAY, Color.LTGRAY
                        );
        renderer.setBarSpacing(0.5);
        renderer.setXLabels(0);
        renderer.setYLabels(10);
        renderer.addXTextLabel(1, "Jan");
        renderer.addXTextLabel(3, "Mar");
        renderer.addXTextLabel(5, "May");
        renderer.addXTextLabel(7, "Jul");
        renderer.addXTextLabel(10, "Oct");
        renderer.addXTextLabel(12, "Dec");
        renderer.addYTextLabel(-25, "Very cold");
        renderer.addYTextLabel(-10, "Cold");
        renderer.addYTextLabel(5, "OK");
        renderer.addYTextLabel(20, "Nice");
        renderer.setMargins(new int[]{30, 70, 10, 0});
        renderer.setYLabelsAlign(Align.RIGHT);
        XYSeriesRenderer r = (XYSeriesRenderer) renderer.getSeriesRendererAt(0);
        r.setDisplayChartValues(true);
        r.setChartValuesTextSize(12);
        r.setChartValuesSpacing(3);
        r.setGradientEnabled(true);
        r.setGradientStart(-20, Color.BLUE);
        r.setGradientStop(20, Color.GREEN);
        return ChartFactory.getRangeBarChartIntent(
                context, dataset, renderer, Type.DEFAULT,
                "Temperature range"
                                                  );
    }

}
